created and tested server side water control

app/client/app.js

@@ -1,17 +1,8 @@
-if (Meteor.isClient) {
+// at the beginning
+Session.set("templateName", "start");
 
-  Template.display.helpers({
-    sensorDataCollection: function () {
-      return SensorData.find({}, {sort: {created_at: -1}})
-    }
-  });
-
-  Template.display.events({
-  });
-
-  Template.sensorData.helpers({
-   created_at_formatted: function() {
-      return moment(this.created_at).format("DD.MM.YYYY, HH:mm")
-   }
- });
-}
+Template.body.helpers({
+  template_name: function() {
+    return Session.get("templateName");
+  }
+});